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important · Edge — remote access

An authenticated TeamViewer remote party can override features the target explicitly denied.

Affects

TeamViewer Full Client and Host, cross-platform remote-support clients on Windows, Linux and macOS.

Attacker-controlled access parameters override the target's configured feature permissions during session establishment.

Detail and 3 sources

TeamViewer says code execution can follow, but it does not identify the affected feature, resulting process or execution context.

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Every finding here carries a source that was checked before it published. If something is wrong, write to admin@fullchain.sh — corrections are published on the day they affect.

Wednesday, September 30, 2026